Inspection Evaluation And Repair Of Steel structures Part 12 docx

... type of connection (intersection of bracing members, diaphragms, and girders) is a very common occurrence on lift gates, miter gates, tainter gates, and bridges. Flanges of bracing members and ... composed of a steel outer frame, two support beams, and several screen bars that span the frame across the support beams. The bars were attached on the upstream face of the rac...

Ngày tải lên: 05/08/2014, 11:20

... describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection identification of critical locations (such as fracture critical members and various con- nections) ... or lift gates, but some 1-1 US Army Corps of Engineers® ENGINEERING AND DESIGN Inspection, Evaluation, and Repair of Hydraulic Steel Structures...

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... periodic inspection of hydraulic steel structures, if necessary. These methods, discussed in Chapter 4, include dye penetrant, magnetic particle, or eddy-current methods for inspection of cracks, and ... contact surfaces of the structure and seal, galvanic corrosion if the seal plate is of a dissimilar metal to that of the structure itself, or erosion corrosion if abras...

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... Behavior of Steel Materials a. The operating service temperature of a steel structure has a significant effect on the fracture behavior of the steel. For low- and intermediate-strength steels, ... Structural Evaluation 6-1. Purpose of Evaluation a. Structural evaluation is the process of determining the capability of a structure to perform its intended f...

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... of σ and a. Stress-intensity factors for various types of geometries can be calculated using the information included in Figures 6-8 through 6-16 (Barsom and Rolfe 1987). Barsom and Rolfe and ... the distance between the edge of component and edge of crack in the through-thickness direction Figure 6-4. Resolution of a discontinuity (after British Standards Insti...

Ngày tải lên: 05/08/2014, 11:20

... Pennsylvania Department of Transportation 1988 Pennsylvania Department of Transportation. 1988. “Guidelines for Fatigue and Fracture Safety Inspection of Bridges,” Commonwealth of Pennsylvania, Department ... Manual of Steel Construction,” 9 th ed., Chicago, IL. American Institute of Steel Construction 1994 American Institute of Steel Construction. 1994. “Load...

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... toughness of steel is generally a function of chemical composition, thermomechanical history, and microstructure. Chemical composition affects the toughness of a steel, since the addition of solute ... especially true of welds on riveted structures, since the structural steels typically used in older structures are not characterized as steels for welding. A discussion of...

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... structural evaluation is included and the severity of the condition can be quantitatively compared with previous and future observations. c. Evaluation. Evaluation of the effects of existing ... the performance of a hydraulic steel structure. The extent and nature of any noticeable plastic deformation should be noted and accurately described during the inspecti...

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... inspected structures, date and time of inspection, type of inspection, inspection procedure, inspection equipment, inspector identity and qualifications, and a record of discontinuities detected that ... results of NDT. (c) NDT Level III: An NDT Level III individual shall be capable of establishing techniques and procedures; interpreting codes, standards, and...

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... (Pennsylvania Department of Transportation 1988). Figure 6-23. Development of maintenance schedule 6 -12. Recommended Solutions for Distressed Structures a. If a thorough evaluation of the ... involve repair of fractured members using qualified welding procedures and improved fatigue details or bolted cover plates. A long-term solution would involve detailed i...

Ngày tải lên: 05/08/2014, 11:20